diff options
author | Anthony PERARD <anthony.perard@citrix.com> | 2014-10-29 06:49:10 +0000 |
---|---|---|
committer | jljusten <jljusten@Edk2> | 2014-10-29 06:49:10 +0000 |
commit | abcbbb14a44a83b4cdf90137307a62e7b58e6720 (patch) | |
tree | 233c7beab4c4edcc10b0936cd8ef56e3accde136 /OvmfPkg/XenBusDxe/XenBusDxe.c | |
parent | a154f420147b0a3f449bb52da1e76dabef3478a5 (diff) | |
download | edk2-platforms-abcbbb14a44a83b4cdf90137307a62e7b58e6720.tar.xz |
OvmfPkg/XenBusDxe: Add support to make Xen Hypercalls.
Change in V4:
- Replace the license by the commonly used file header text.
- add file header to XenHypercall.h (license, copyright, brief desc)
Change in V3:
- adding IA32 support. (not reviewed yet)
both XenBusDxe/Ia32/hypercall.{S,asm} file are new
Change in V2:
- file header, copyright
- Add License
- Add push/pop instruction.
- fix types
- Comment of exported functions
- Improve coding style
- Add error handling in the main init function (of the drivers)
- Comment assembly
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16260 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg/XenBusDxe/XenBusDxe.c')
-rw-r--r-- | OvmfPkg/XenBusDxe/XenBusDxe.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/OvmfPkg/XenBusDxe/XenBusDxe.c b/OvmfPkg/XenBusDxe/XenBusDxe.c index f3c74e1fbe..4c638b85f1 100644 --- a/OvmfPkg/XenBusDxe/XenBusDxe.c +++ b/OvmfPkg/XenBusDxe/XenBusDxe.c @@ -29,6 +29,8 @@ #include "XenBusDxe.h"
+#include "XenHypercall.h"
+
///
/// Driver Binding Protocol instance
@@ -264,6 +266,8 @@ NotifyExitBoot ( @retval EFI_SUCCESS The device was started.
@retval EFI_DEVICE_ERROR The device could not be started due to a device error.Currently not implemented.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
+ @retval EFI_UNSUPPORTED Something is missing on the system that
+ prevent to start the edvice.
@retval Others The driver failded to start the device.
**/
@@ -295,6 +299,20 @@ XenBusDxeDriverBindingStart ( mMyDevice = Dev;
EfiReleaseLock (&mMyDeviceLock);
+ Status = XenHyperpageInit (Dev);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "XenBus: Unable to retrieve the hyperpage.\n"));
+ Status = EFI_UNSUPPORTED;
+ goto ErrorAllocated;
+ }
+
+ Status = XenGetSharedInfoPage (Dev);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((EFI_D_ERROR, "XenBus: Unable to get the shared info page.\n"));
+ Status = EFI_UNSUPPORTED;
+ goto ErrorAllocated;
+ }
+
Status = gBS->CreateEvent (EVT_SIGNAL_EXIT_BOOT_SERVICES, TPL_CALLBACK,
NotifyExitBoot,
(VOID*) Dev,
|